On the planet Feline, there are only cats. For one particular phenotype, Myles,

Question

On the planet Feline, there are only cats. For one particular phenotype, Myles, there are two manifestations: either the cats like jazz music (the wild type phenotype) or they do not (the mutant phenotype). Under the assumption this phenotype is determined by a single gene with two alleles, and given that a mating of two wild-type cats produces the following number of offspring: Female, wild-type: 341; Male, wild-type: 369; Female, Myles: 121; Male, Myles: 123. The mode of inheritance most consistent with these data is: A. Autosomal dominant. B. Two-locus inheritance. C. Sex-linked recessive. D. Autosomal recessive. E. Two-locus dominant. thank you

Explanation / Answer

Ans: Right answer is D. autosomal recessive

Because A. if its autosomal dominant myles phenotype cats could have been more than wild-type. B. Its not two locus because it’s a single gene with two alleles at same loci. C. if sex linked recessive any of the sex either male or female should be myles type phenotype, but here both are appearing in almost equal number E. not two locus dominant myles phenotype cats are less in number hence not dominant

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